Facile room-temperature growth of nanostructured CuBi2O4 for selective electrochemical reforming and photoelectrochemical hydrogen evolution reactions

2020 ◽  
Vol 4 (2) ◽  
pp. 625-632 ◽  
Author(s):  
Chia-Yu Lin ◽  
Shao-Yu Lin ◽  
Ming-Chun Tsai ◽  
Cheng-Hsien Wu
Keyword(s):  
Hydrogen Evolution ◽  
Chemical Bath Deposition ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Temperature Growth ◽  
Hydrogen Evolution Reactions ◽  
Seed Mediated

Facile, room-temperature, and surfactant-free seed-mediated chemical bath deposition was developed to directly grow nanostructured CuBi2O4 with promising properties towards electro-reforming of glucose and PEC hydrogen generation.

General Synthesis of Single‐Atom Catalysts for Hydrogen Evolution Reactions and Room‐Temperature Na‐S Batteries

2020 ◽  
Vol 59 (49) ◽  
pp. 22171-22178 ◽  
Author(s):  
Wei‐Hong Lai ◽  
Heng Wang ◽  
Lirong Zheng ◽  
Quan Jiang ◽  
Zi‐Chao Yan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Room Temperature ◽  
Single Atom ◽  
Hydrogen Evolution Reactions ◽  
General Synthesis

scholarly journals Beta-Cyclodextrin-Assisted Synthesis of Silver Nanoparticle Network and Its Application in a Hydrogen Generation Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1014 ◽  
Author(s):  
Clay Huff ◽  
Julia M. Long ◽  
Tarek M. Abdel-Fattah
Keyword(s):  
Hydrogen Evolution ◽  
Silver Nanoparticle ◽  
Hydrogen Generation ◽  
X Ray Diffraction ◽  
Water Displacement ◽  
Beta Cyclodextrin ◽  
Transmission Electron ◽  
Hydrogen Evolution Reactions ◽  
Alternative Sources ◽  
Displacement System

The unsustainable nature of carbon-based fuels has prompted scientists and engineers to investigate alternative sources of energy. Silver nanoparticle networks (AgNPNs) were synthesized using beta-cyclodextrin for applications in hydrogen evolution reactions from sodium borohydride (NaBH4). The identities of the AgNPNs were confirmed using ultraviolet–visible spectroscopy, X-ray diffraction, and Transmission electron microscopy (TEM). The catalytic activity of the hydrogen evolution reactions was measured using a gravimetric water displacement system. The data collected show an increase in the efficiency of the hydrogen generation reaction with the addition of AgNPN. The silver nanoparticle network catalyst performed best at 22 °C with an increased concentration of NaBH4 producing hydrogen at a rate of 0.961 mL∙min−1∙mLcat−1. The activation energy was calculated to be 50.3 kJ/mol.

Bimetallic Ni–Pt nanoparticles immobilized on mesoporous N-doped carbon as a highly efficient catalyst for complete hydrogen evolution from hydrazine borane

2020 ◽  
Vol 8 (27) ◽  
pp. 13694-13701 ◽  
Author(s):  
Wei Wang ◽  
Xiaoling Hong ◽  
Qilu Yao ◽  
Zhang-Hui Lu
Keyword(s):  
Hydrogen Evolution ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Pt Nanoparticles ◽  
Efficient Catalyst ◽  
Highly Efficient

NiPt NPs immobilized on mesoporous N-doped carbon have been facilely synthesized for efficient and complete hydrogen generation from N2H4BH3 solution at room temperature.

scholarly journals General Synthesis of Single‐Atom Catalysts for Hydrogen Evolution Reactions and Room‐Temperature Na‐S Batteries

2020 ◽  
Vol 132 (49) ◽  
pp. 22355-22362
Author(s):  
Wei‐Hong Lai ◽  
Heng Wang ◽  
Lirong Zheng ◽  
Quan Jiang ◽  
Zi‐Chao Yan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Room Temperature ◽  
Single Atom ◽  
Hydrogen Evolution Reactions ◽  
General Synthesis

Seed-mediated synthesis and PEG coating of gold nanoparticles for controlling morphology and sizes

MRS Advances ◽  
2020 ◽  
Vol 5 (63) ◽  
pp. 3353-3360
Author(s):  
Susana Helena Arellano Ramírez ◽  
Perla García Casillas ◽  
Christian Chapa González
Keyword(s):  
Gold Nanoparticles ◽  
Polyethylene Glycol ◽  
Room Temperature ◽  
Colloidal Stability ◽  
Infrared Spectrometry ◽  
Ammonium Bromide ◽  
Chloroauric Acid ◽  
Vis Spectroscopy ◽  
Seed Mediated ◽  
Peg Coating

AbstractA significant area of research is biomedical applications of nanoparticles which involves efforts to control the physicochemical properties through simple and scalable processes. Gold nanoparticles have received considerable attention due to their unique properties that they exhibit based on their morphology. Gold nanospheres (AuNSs) and nanorods (AuNRs) were prepared with a seed-mediated method followed of polyethylene glycol (PEG)-coating. The seeds were prepared with 0.1 M cetyltrimethyl-ammonium bromide (CTAB), 0.005 M chloroauric acid (HAuCl4), and 0.01 M sodium borohydride (NaBH4) solution. Gold nanoparticles with spherical morphology was achieved by growth by aggregation at room temperature, while to achieve the rod morphology 0.1 M silver nitrate (AgNO3) and 0.1 M ascorbic acid solution were added. The gold nanoparticles obtained by the seed-mediated synthesis have spherical or rod shapes, depending on the experimental conditions, and a uniform particle size. Surface functionalization was developed using polyethylene glycol. Morphology, and size distribution of AuNPs were evaluated by Field Emission Scanning Electron Microscopy. The average size of AuNSs, and AuNRs was 7.85nm and 7.96 x 31.47nm respectively. Fourier transform infrared spectrometry was performed to corroborate the presence of PEG in the AuNPs surface. Additionally, suspensions of AuNSs and AuNRs were evaluated by UV-Vis spectroscopy. Gold nanoparticles were stored for several days at room temperature and it was observed that the colloidal stability increased once gold nanoparticles were coated with PEG due to the shield formed in the surface of the NPs and the increase in size which were 9.65±1.90 nm of diameter for AuNSs and for AuNRs were 29.03±5.88 and 8.39±1.02 nm for length and transverse axis, respectively.

scholarly journals Rugae-like FeP nanocrystal assembly on a carbon cloth: an exceptionally efficient and stable cathode for hydrogen evolution

Nanoscale ◽  
2015 ◽  
Vol 7 (25) ◽  
pp. 10974-10981 ◽  
Author(s):  
Xiulin Yang ◽  
Ang-Yu Lu ◽  
Yihan Zhu ◽  
Shixiong Min ◽  
Mohamed Nejib Hedhili ◽  
...  
Keyword(s):  
Gas Phase ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Hydrogen Generation ◽  
High Surface ◽  
High Surface Area ◽  
Catalytic Efficiency ◽  
Carbon Cloth ◽  
Nanocrystal Assembly

High surface area FeP nanosheets on a carbon cloth were prepared by gas phase phosphidation of electroplated FeOOH, which exhibit exceptionally high catalytic efficiency and stability for hydrogen generation.

Synthesis of hierarchical MoSe2 nanolayers on sodium sulfide crystals for electrocatalytic hydrogen evolution

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Meina Ju ◽  
Kun Song ◽  
Guoli Chen ◽  
Rui Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Sodium Sulfide ◽  
Hydrogen Generation ◽  
Clean Energy

Hydrogen generation via water electroreduction is a pivotal portion of exploiting clean-energy skills. Nevertheless, developing a low price and high-performance catalytic activity substance to take the place of expensively precious...

Sign in / Sign up

Export Citation Format

Share Document